From the yonex web site, the string tension for : Ti10 : main - 16-18lbs cross - 18-20lbs IsoTiSPSX : main - 16-18lbs cross - 18-20lbs And from the Canada Yonex catalog: Ti10 : main - 20-22lbs cross - 22-24lbs IsoTiSPSX : main - 20-22lbs cross - 22-24lbs It seems that the string tension specifications in the yonex web site is 4 lbs lighter than the catalog for all racquets. Which source is more accurate ???
there was a debate on whether SP are weaker than non SP rackets. Maybe this difference tell us something. Hmmm. maybe.
how come on 'my' canada yonex catalog the recommended string tensions are the same as the yonex website tensions you provided?